what is 13(y+7)=3(y−1)

Answer:  Anica is correct

For example,  5-3 can be written as 5 + (-3)

Subtracting a positive is the same as adding a negative.

Answer:

yes

Step-by-step explanation:

It can be written as an addition of a negative

Example     3-5    is the same as    3 + (-5)

Answer:

The student did not distribute properly to get A= P+Prt. The equation can be fixed by putting a factor of P in the denominator: r=(A-P)/Pt

Step-by-step explanation:

just did it

There is an error in step 2 where distributive property was not followed.

Simple Interest (S.I.) is the method of calculating the interest amount for a particular principal amount of money at some rate of interest.

Steps taken by the student to solve the formula of the simple interest for the values of '',

Step 1 : A = P( 1 +rt)

Step 2 : A = P + rt

Step 3 : A - p = rt

Step 4 : r = (A - P)/ t

There is an error in step 2 where distributive property was not followed.

Correct steps should be,

Step 1 : A = P( 1 +rt)

Step 2 : A = P + Prt [By distributive property]

Step 3 : A - P = Prt

Step 4 : r = (A-P)/Pt

Therefore, error was made in step 2.

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Answer:

160% (25)

160/100 (25)

reduce the numbers with greatest common divisor 25

160/4

reduce the fraction with 4

=40

Answer:

1

Step-by-step explanation:

1) The equation is 1 1/2 ÷ x = 2/3

2) You can multiply 2/3 with 1 1/2 to get your answer

3) 2/3 × 1 1/2 = 1

Hope this helps!

The lines which are parallel are none.

The slope is the ratio of the vertical changes to the horizontal changes between two points of the line.

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

where (x₁, y₁) and (x₂, y₂) are the two points that you are trying to find the slope between.

Given;

Coordinates of three lines

a;(1,5) and (-2,-4)

b;(3,2) and (1,-4)

c;(6,1) and (-4,2)

Now, slopes of the lines

a= -4-5/-2-1

=10/3

b=-4-2/1-3

=-3

c=2-1/-4-6

=1/-10

Therefore, by slopes of the line none of them are parallel.

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The ratio of side lengths which is also equal RT/RX and RS/RY as required to be determined in the task content is; Choice D; ST / YX.

It follows from the task content that the ratio which is equivalent to; RT/RX and RS/RY is to be determined.

Recall that the underlying conditions for similar triangles by the SSS similarity theorem is that the ratio of corresponding sides be equal.

Consequently, the ratio which is equivalent to the ratio of the other corresponding sides as stated is; Choice D; ST / YX.

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Answer:

The new volume is 81.2% of the prior, this is true for any for any values of radius and height, as long as they are changed as stated.

Step-by-step explanation:

The volume of a cylinder is given by:

\(V = \pi*r^2*h\)

If we increase the diameter by 15%, then the radius is increased by 7.5% and the new radius is:

\(r_{new} = 1.075*r\)

If we decrease the height by 30%, then the new height is 70% of the prior and is given by:

\(h_{new} = 0.7*h\)

Applying to the volume formula we have:

\(V_{new} = pi*(r_{new})^2*h_{new}\)

\(V_{new} = \pi*(1.075*r)^2*0.7*h\\V_{new} = 1.16*0.7*\pi*r^2*h\\V_{new} = 0.812*\pi*r^2*h\\V_{new} = 0.812*V\)

The new volume is 81.2% of the prior, this is true for any for any values of radius and height, as long as they are changed as stated.

As the value of n increases, the standard deviation of phat (the sample proportion) decreases. Therefore, the correct answer is D. It decreases.

The standard deviation of phat is inversely proportional to the square root of the sample size. This means that as the sample size increases, the standard deviation decreases. The larger the sample size, the more precise the estimate of the population proportion becomes, leading to a smaller spread or variability in the sample proportions.

This relationship is a fundamental property of the sampling distribution of the sample proportion. As the sample size increases, the variability due to sampling decreases, resulting in a more accurate and precise estimation of the population proportion.

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Step-by-step explanation:

sketch the mother function of |x| then go 3 steps to the right horizontally and that's it

Answer:

Not sure but I think it might be A

Step-by-step explanation:

Took the test

The average daily cost of Aaron of driving his car to work is $5.1169.

Average cost is calculated by dividing the total cost by the total output quantity.

Miles for a round trip for 1 day = 10.5 miles

Since it is round trip, total miles for 1 day = 10.5 × 2 = 21 miles

Miles for a round trip for 22 days = 21 × 22 = 462 miles

Gallons for 15 miles = 1 gallon

Gallons for 1 mile = 1/15 gallons

Gallons for 462 miles = 30.8 gallons

Cost per gallon = $1.09

Cost for 30.8 gallons = 30.8 × 1.09 = $33.572

Payment for car parking = $79

Total cost per month = $33.572 + $79 = $112.572

Average daily cost = $112.572 / 22 = $5.1169

Hence the average cost per day is $5.1169.

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Explanation:

Side AB is opposite angle C.

Convention is that the lowercase letters represent the side lengths, and they are opposite the uppercase angles.

In short, side AB can be relabeled as side c. Therefore, c = 6.

Angle BAC can be shortened to simply saying angle A.

Angle ABC is shortened to angle B.

The angle names are drawn directly from the middle letter.

------------------

Here's the given info:

Let's use the idea that all 3 angles of a triangle must add to 180 to find angle C.

A+B+C = 180

C = 180-A-B

C = 180-50-70

C = 60

Now let's use the law of sines to determine side 'a'.

a/sin(A) = c/sin(C)

a/sin(50) = 6/sin(60)

a = sin(50)*6/sin(60)

a = 5.3073115853515 approximately

a = 5.3 after rounding to one decimal place

Segment BC is approximately 5.3 cm long.

Answer:

8

Step-by-step explanation:

8*4 is 32 8*9 is 72

so, it is 8

since it is distributive property 8(4+9)

Answer:

8

Step-by-step explanation:

1) simplify the equation

32+72=104

104=4x+9x (distibute the "x")

104=13x

x=8

hence the "blank" is 8

Answer:

C

Step-by-step explanation:

negative four raised to the sixth power divided by negative four raised to the fourth power

because  negative four raised to the fourth power divided by negative four raised to the second power = negative four raised to the second power

negative four raised to the sixth power divided by negative four raised to the fourth power also = negative four raised to the second power

The answer is A: negative four raised to the second power divided by negative four raised to the fourth power. This is obtained by applying the rules of exponents, specifically, when dividing with the same base, subtract the exponents.

This question pertains to exponents division rules. According to the rule of Power of a Power in exponents, when you divide expressions with the same base, you subtract the exponents. So if you have negative four raised to the fourth power (-4⁴) and you want to divide it by negative four raised to the second power (-4²), you subtract 2 from 4 to get an exponent of 2. This results in a negative four raised to the second power (-4²). So, the correct option from the given choices in your question is A: negative four raised to the second power divided by negative four raised to the fourth power.

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Answer: 32.6%

Step-by-step explanation:

percentage is whatever number you have x100 which would move the decimal point right 2 points and in this case would move the decimal from .326 to 32.6

The bag contains $4.60 in coins.

What are coins?

Let's use P, N, D, and Q to represent the number of pennies, nickels, dimes, and quarters, respectively, in the bag.

We know that the total number of coins is 50, so:

P + N + D + Q = 50

We also know that 10% of the coins are pennies, so:

P = 0.1(50)

P = 5

There are 2 more nickels than pennies, so:

N = P + 2

N = 5 + 2

N = 7

Now we can use this information to find the number of dimes and quarters. Since there are 50 coins in total, we can substitute the values we have found for P and N into the first equation:

P + N + D + Q = 50

5 + 7 + D + Q = 50

12 + D + Q = 50

D + Q = 38

We also know the values of P and N, so we can find the total value of all the coins in the bag:

Total value = (value of pennies) + (value of nickels) + (value of dimes) + (value of quarters)

Total value = (5 cents x 5) + (7 cents x 5) + (10 cents x D) + (25 cents x Q)

Total value = 25 + 35 + 10D + 25Q

We can substitute D + Q = 38 into this equation to get:

Total value = 25 + 35 + 10(D + Q)

Total value = 60 + 10(38)

Total value = 460 cents, or $4.60

Therefore, the bag contains $4.60 in coins.

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Answer:

hope this helps

Step-by-step explanation:

3:39 is not equivalent

Stainless steel 316L is a commonly used material for biomedical devices due to its unique properties. Let's discuss its advantages, disadvantages, and possible applications.

Advantages of Stainless Steel 316L:
1. Corrosion Resistance: Stainless steel 316L has excellent resistance to corrosion in various environments, including exposure to body fluids. This makes it highly suitable for long-term use in biomedical devices.
2. Biocompatibility: It is biocompatible, meaning it is not toxic or harmful to living tissues. This property allows for its safe use in medical implants and devices.
3. High Strength: Stainless steel 316L exhibits high tensile strength, which is crucial for biomedical devices that need to withstand mechanical stress and forces.
4. Easy Sterilization: It can be easily sterilized using various methods such as autoclaving, gamma irradiation, or ethylene oxide. This ensures the safety and cleanliness of the devices.

Disadvantages of Stainless Steel 316L:
1. Magnetic Susceptibility: Stainless steel 316L is slightly magnetic, which may interfere with certain medical procedures or imaging techniques like magnetic resonance imaging (MRI). In such cases, non-magnetic materials may be preferred.
2. Potential Allergic Reactions: Although rare, some individuals may have allergic reactions to certain components of stainless steel, including nickel. For individuals with known allergies, alternative materials may be considered.

Possible Applications of Stainless Steel 316L in Biomedical Devices:
1. Surgical Instruments: Stainless steel 316L is commonly used to manufacture surgical instruments due to its corrosion resistance, durability, and ease of sterilization.
2. Orthopedic Implants: This material is often used for orthopedic implants like joint replacements, bone plates, and screws due to its high strength, corrosion resistance, and biocompatibility.
3. Dental Implants: Stainless steel 316L can be used for dental implants, providing a stable and durable solution for tooth replacement.
4. Cardiovascular Devices: It is also used in cardiovascular devices like stents and pacemakers, where corrosion resistance and biocompatibility are crucial.

In summary, Stainless steel 316L offers advantages such as corrosion resistance, biocompatibility, high strength, and easy sterilization. However, it has disadvantages like magnetic susceptibility and potential allergic reactions. Its possible applications include surgical instruments, orthopedic and dental implants, and cardiovascular devices.

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The volume of the regular pentagonal prism is approximately 1285.5 cubic centimeters.

The formula for the volume of a regular pentagonal prism is:

V = (5/2) × apothem² × height × sin(72°)

Given that the required apothem is of 6.9 cm and the height is 8 cm, we can plug in these values into the formula:

V = (5/2) × (6.9)² × 8 × sin(72°)

V = (5/2) × 47.61 × 8 × 0.9511

V ≈ 1285.5 cubic centimeters

Therefore, we can say that the volume of the regular pentagonal prism is approximately 1285.5 cubic centimeters.

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Complete Question:

Find the volume of the following regular pentagonal prism, if the apothem is 6.9 cm and the height of the prism is 8 cm. Round your final answer to the nearest tenth if necessary.

The four common denominators are 6,12, 18 and 24.

A fraction is a non-integer. It is made up of numerators and denominators. An example of a fraction is 2/3. 2 is the numerator and 3 is the denominator.

The common denominators for the fractions are numbers that would divide both 2 and 3. This numbers can be determined by multiplying 2 and 3 and finding the multiple of the product.

2 x 3 = 6

Multiples of 6 = 6, 12, 18, 24

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The quadratic equation that has (3·x + β) ans (3·x + a) as the roots can be presented as follows;

9·x² - 7.5·x - 3 = 0

A quadratic equation is an equation that can be expressed in the form; y = a·x² + b·x + c, where, a ≠ 0, and a, b, and c are numbers.

The quadratic equation -2·x² - 5·x + 6 = 0, divided by a factor of -1 indicates that we get;

2·x² + 5·x - 6 = 0

The quadratic formula indicates that we get;

x = (-5 ± √(5² - 4 × 2 × (-6))/(2 × 2) = (-5 ± √(73))/4

Let a = (-5 + √(73))/4 and let β =  (-5 - √(73))/4)

(3·x + ((-5 + √(73))/4)) × (3·x + (-5 - √(73))/4) = 9·x² + 3·x·(-5 - √(73))/4) + 3·x·(-5 + √(73))/4) + ((-5 + √(73))/4)) × (-5 - √(73))/4)

9·x² + 3·x·(-5 - √(73))/4) + 3·x·(-5 + √(73))/4) + ((-5 + √(73))/4)) × (-5 - √(73))/4) = 9·x² - 15·x/2 - 3 = 0

Therefore, the equation that has (3·x + β) ans (3·x + a) as roots is the equation

9·x² - 15·x/2 - 3 = 9·x² - 7.5·x - 3 = 0

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Answer:

Step-by-step explanation:

Inches per hour is the rate we are looking for here, which will then be the slope of the linear equation. Slope is the same thing as the rate of change. While this may not seem all that important right now, it's actually a HUGE concept in higher math, especially calculus!

If the pool is filling at a rate of 2 inches per every 4 hours, then by dividing, we get that the rate is 1 inch every 2 hours, which translates to a slope of 1/2. Creating an equation with this slope:

\(w=\frac{1}{2}t\)  Let's check it. We are told that after 4 hours there are 2 inches of water in the pool. That means if we plug in 4 for t and solve for w, we should get w = 2:

\(w=\frac{1}{2}(4)\) and

w = 2. So we're good!

Answer:

Beto and Mark

Step-by-step explanation:

When you simplify Beto's equation, you get 0=5 which is inncorrect. 5 does not equal 0 so there are no solutions. When you simplify Mark's equation, you get 6=2 which is also inncorrect. 6 can not equal 2. If you solve the other 2 equations you get answers that can work.

Answer:

89 is the perimeter

Step-by-step explanation:

\(\\ \sf\Rrightarrow y=-x+2\)(1)

\(\\ \sf\Rrightarrow y=x+1\)(2)

Now

\(\\ \sf\Rrightarrow -x+2=x+1\)

\(\\ \sf\Rrightarrow -2x=-1\)

\(\\ \sf\Rrightarrow x=0.5\)

Put in eq(2)

\(\\ \sf\Rrightarrow y=0.5+1\)

\(\\ \sf\Rrightarrow y=1.5\)

a) (572)8
Step 1:  5 - 101, 7 - 111, and 2 - 010
Step 2: Combine the binary equivalents.
(572)8 = (101 111 010)2

b) (1604)8
Step 1: Convert each digit to its 3-bit binary equivalent.
1 - 001, 6 - 110, 0 - 000, and 4 - 100
Step 2: Combine the binary equivalents.
(1604)8 = (001 110 000 100)2

c) (423)8
Step 1: Convert each digit to its 3-bit binary equivalent.
4 - 100, 2 - 010, and 3 - 011
Step 2: Combine the binary equivalents.
(423)8 = (100 010 011)2

d) (2417)8
Step 1: Convert each digit to its 3-bit binary equivalent.
2 - 010, 4 - 100, 1 - 001, and 7 - 111
Step 2: Combine the binary equivalents.
(2417)8 = (010 100 001 111)2

To convert an octal number to binary, we simply need to replace each octal digit with its 3-bit binary equivalent. Here are the steps for each of the given integers:

a) (572)8
- The octal expansion has three digits: 5, 7, and 2.
- To convert each digit to binary:
  - 5 = 101 in binary (since 5 = 4 + 1 = 2^2 + 2^0)
  - 7 = 111 in binary (since 7 = 4 + 2 + 1 = 2^2 + 2^1 + 2^0)
  - 2 = 010 in binary (since 2 = 2^1)
- So the binary expansion of (572)8 is 101111010.

b) (1604)8
- The octal expansion has four digits: 1, 6, 0, and 4.
- To convert each digit to binary:
  - 1 = 001 in binary (since 1 = 2^0)
  - 6 = 110 in binary (since 6 = 4 + 2 = 2^2 + 2^1)
  - 0 = 000 in binary
  - 4 = 100 in binary (since 4 = 2^2)
- So the binary expansion of (1604)8 is 001101000100.

c) (423)8
- The octal expansion has three digits: 4, 2, and 3.
- To convert each digit to binary:
  - 4 = 100 in binary (since 4 = 2^2)
  - 2 = 010 in binary (since 2 = 2^1)
  - 3 = 011 in binary (since 3 = 2 + 1 = 2^1 + 2^0)
- So the binary expansion of (423)8 is 100010011.

d) (2417)8
- The octal expansion has four digits: 2, 4, 1, and 7.
- To convert each digit to binary:
  - 2 = 010 in binary (since 2 = 2^1)
  - 4 = 100 in binary (since 4 = 2^2)
  - 1 = 001 in binary (since 1 = 2^0)
  - 7 = 111 in binary (since 7 = 4 + 2 + 1 = 2^2 + 2^1 + 2^0)
- So the binary expansion of (2417)8 is 010010001111.


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Answer:

A. 37

Explanation:

The angles F and G

Answer:

Step-by-step explanation:

Given 3x + 4y + 2 + 6y + 3

Collecting the like terms

3x + 4y + 2 +6y + 3

Add 4y and ^y

3x+10y+2+3

Add 2 and 3

= 3x+10y+5

The coefficient of y is 10

The constant is 3

Answer:

The correct answer is c

Answer:

Answer is c

Step-by-step explanation:

Your welcome